Grate for heaters.



L. J. MUELLER, JR.

I GRATE FOB. HEATERS.

APPLIUATION FILED DBO. 24 1910.

Patented July 22, 1913.

JMMMW Attorneys.

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wzrsoonsmQ sssrsnon'ro L; J. MUELLER CORPGMTION OF WISCONSIN;

Patentedduly 22, 1913-.

,To all'whom it'moyooncemr I LOUIS-VJ. MUELLER, Jr.--,'y United States, residing at isa, speci- Heat rs whi the f ll win the moon penying drawin'g, firming a part-*thereof.

This invention relates togratesheving; os cille oryi or rocking" ars It con ists in the construction; arranges ment and combination ofperts as hereinafiter: particularly described and pointedout inthe oleims. Y

I the accompanying drahvmg'like chem aetersdesignate the oral figures.

F g re 1 is a ertical section on he l n 1 1,-Fig ,v 2 through the base or-qash pitioi, a heater embodying, the invention, showing their opere-tingoonneo- Qwith tlw'lntorslprojections h and hf on the Fig. -21 is a horizontal the [no 2, 2, Fig. 1, showing :an inverted plan Yiow of-Va. portion or the grate; transverse 1 section on the thegmte: bars and tions in elevation; seot onpn gig; 3, is a ertinel inc 3 3 Fig. 1; and Fig, 4 is -a vertical .ross section on the line s 4, Fig. 1,,showing the 1 ivotedlstohwhich controls the opera:

on fi-t e r e The, grate-frame a, which is pmfemblyv. cast as shown, integrally with the base 01-)! ash pit b ofsthe'heater, lsformed on oppositev sides with .alined sockets a, which are open on the upper sides-so that't-he grate bars can be dropped'into place and easily assembled from above. The or provided at the ends with .trunnions loosely fitting and adapted to turn in said sockets. The rear grezte "bar is provided at one end with aidepending .a-rm f, having an inwardly projecting pivot pin 9 terminating in a lateral projection h, sex-tending. l therefrom downwardly and rearwardly in sin-oblique directiflnswhen the grate bar in normal working, position, as iii-Fig 1, The other grate bars are "pnovidedwith similar arms fhaving outwardly projecting pivot pins g terminating in lateral projections. h extending downwardly and forwardly when the'grute bars are in. their normal working.

have invented certain newimd useful Improvements 1n Grates for 1 I s-m n o ie are to iec litete "as embling the partsf t e :bars and to slin-a some. parts in 'the' 36V?" projections h grate has (i are formed positions, as shown in Fig. 1. These-drips with the pivot pins andlaterul projections thereon, re' preferably maderof malleable lron, which is strong and durable, cast into the grate bars '01. V i v p A horizontal connecting and" operating bar 2' passing through an opening in thedpor frame j, is pivotally with and sup I portedby an operatinglever k etits front end, end/is suspended upon and suppor e by the pivot pin 9 of the rear grate bar at its rear end. It is formed with a vertically elongated opening Z through which the p vot pin 9! with its projection it will pass ing position. It isalso formedwi-th vertical elongeted openings Z for thepivot pins '9' of the othergrate here. These openings have laperal offsets m at their upper ends through when the rear grate bar is tilted into dumptions If willpass when the grate'bars-are t-ilted'into dumping position. The arm f on the rear grate bar located on the outside, andthe arms f on the other grate bars 10- ,csted-onithe inside of the connecting bar 2',

fpivotzpins g and ,g, securely hold said con- -*necting bar in place, maintaining the orking pivot connections between it and said arms without other fastenings. The pivots by the pivot pins ,9 which are thus caused to move up or down in the elongated openings Z5 whensaid bar is moved lengthwise and the grate bars 05 are rocked. When the connecting bar i is pulled forward and the grate bars are tilted into dumping position, as indicated bydottedlines on Fig. 1, the .on the pivot pins 9' are brought oppositev the lateral oifsets m of the "openings Z, and any of the grate bars may be removed and replaced independently ofthe others. In other positions of the bar ithe projections 70 and h are outof register with the openings '1 and Z and the ofi'sets m of the openings 1, and said bar is thus securely held in place-on the pivot pinsg and 'g when the'grate bars are being rocked, as "W811 as whenxthey are in their normal working positions.

' To remove anyof the grate bars except the rear bar, the end opposite or farthest which the p vot pins 9 with their pro]eoon which the her i is supported at its ends: desorlbe .difi'erent arcs, from those described.

, to the arms f toadmit of thisoperatiom in their normal working i '1. A grate for heaters comprisinga base It is then free and may be removed through the rear gratebar, the front endof the com out of the frame a.

I with shoulders 0, for engagement with a shaking t e grate when the latch is turned.

upper side, grate bars having trunnions 55' and havin out of engagement with the connecting i.

the feed door-of the heater. Byreversal. of these operations, a grate bar may be replaced in operative engagement with the connecting bar a. To remove and replace necting bar 2' is crowded outward or away from the ash pit door, thereby carrying its rear end inward away from the arm f and ofi'from the pivot pin 9, the bar 11 being allowed sufficient lateral play with relation The grate bar is then free and may be lifted It is replaced in a similar manner by a 'reversalof the above'men-' tioned operations;

The connecting bar 1' is formed in its upper ed e with a notch n and on opposite sides '0 and equal distances from said notch latch p pivoted to the door frame to lock the grate bars in their normal or working position, as shown in Fig. 1,and to limit the oscillatory or 'rocking'movement of the grate bars for shaking the grate.

As shown in Fig. 4, the latch '12 is formed witha notc'hig throu h'which the shoulders 1:0 will-freely pass w en the latch is in its central osition, to permit the grate bars to be tilted into dumpm position. On opposite sides "of this notc the latchdsfformed with ton es r and's of diiferentradii or lengths, t "e first adapted to engage with the notch 12, in the bar 1' to lock the gratebars position'when the,

formed with vertical y" on the pivot of t vide' having'openings for said pivot pins, the" arm on the'rear grate bar being located on latch is turned to the left, and the other adapted to engage with the shoulders c on 1 the barz' and thereby limit the oscillatory or rockin movement of the grate bars for,

to the right. The pro er manipulation ofthe latch facilitates t e operation of the grate, relieving the operatorof the necessity of exercising particular care, and' insuring the, grate barsbeing left in proper working position with their flat faces presented to the fire, in which position their'teeth or not l1a3ble to be burned off or injured.

I claim: w J

or frame having alined sockets open on the which are removably fitted in said sockets adjacent to one end depending arms-whic are provided 'wit'h pivot pins' terminating in lateral ;projections"- 'aiid a" connecting bar having rocking supports "adjacent to its end and formed with openings elongated vertically and having at th'eirup pivot pins with their lateral projectionsmay e inserted, when the bars are tilted into a certain abnormal position, said pivot "pins describing different arcs fromthose described by said rockingsuppo-rts, and moving up and down. in said elongated openings when the connecting bar 'is reciprocated.

2., Ai grate for heaters comprislng' a base or frame having sockets open on the upper .,side,-rocking grate bars having, trunnions at the ends which are removabl'yfitted in said sockets and having adjacent'to one end thereof depending arms whichare provided vwith pivot pins terminating 'intlater al pro,-

and operating bar elongated o" nin having lateral offsets throughiwhichf'the j ections, a connectin .pivot pins of certainljgrate ba'rs may beina serted or'withdrawnwhen they are turned to a certain abnormal-position 'and an operating lever pivoted to and-supporting the front end of said connecting bar, thearinof the rear grate bar being'located ontlie o p:osite' side of the connecting bar" the arms the other;

ate bars, and therear end of said connectin bar'being suspended e rear grate bar {and describing a different amrrsm the arcs de bed by the pivot pins of "the" other grate bars whentheyarerocked. 5

3'5Agrate for heaters comprising a base or frame having open sockets on opposite.

sides thereof, grate bars having at the ends trunnionswhich are fitted-to turn in'said sockets and having adjacent to one side of the rate'depending arms which are prowith pivot pins, a connecting bar the opposite side of the'connecting' bar from the arms of the. other grate bars and supporting the rear end ,pf the connecting ,bar, and the holes in the connecting bar foijthe pivot pins of the other grate bars vertically elongated to permit said pins to play up and down therein when the bars are rocked, and an o crating lever pivoted to and supporting the front end of said connecting bar, the rocking, ivot supports of the connecting bar descrl ing different I p arcs from those described by the pivot pins prongs do not project-into the fire" and are in the vertically elongated holes of rocking grate bars provided adjacent to one end thereof with depending arms, of a con nectin bar pivoted to said arms and having a notc in one edge adjacent to its front end and shoulders on opposite sides of said notch, an operating lever connected with said connecting bar and a pivotedlatch having a notch through which said shoulders will pass for dumping the grate, posite' sides of 'said notch tongues of differper ends lateral ofi'sets through which the and on opwith said shoulders and limit the roc engage with the notch in the connecting bar and lock the grate bars in their normal position.

5. In a grate for heaters the combination of a frame having alined sockets on opposite sides thereof, grate bars provided at the ends with trunnions removably fitted in said sockets and at one end with depending arms having pivot pins projecting laterally therefrom, some of said pins projecting in one direction and the others, in the opposite direction, parallel with the axes of the bars,

and a connecting bar having openings for said pivot pins, said arms being arranged on opposite sides of said connecting bar and normally confining the same in place 15 between them.

In witness whereof I hereto aflix my signature in presence of two witnesses.

LOUIS J. MUELLER, JR. Witnesses:

E. S. SEIMS, CHAs. L. Goss. 

